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From a5f5698a6832fc1f8179a9257f0b91c9a8ef496b Mon Sep 17 00:00:00 2001
From: Cyprien Nicolas <cyprien@octopuce.fr>
Date: Thu, 27 Oct 2022 14:36:33 +0200
Subject: [PATCH] Fix #847: enable back GD_BICUBIC* interpolation methods
(cherry picked from commit 39abd7238cea2ba8baa4bcac1d6fc01c6cb8afab)
---
src/gd_interpolation.c | 5 +++++
tests/gdimagesetinterpolationmethod/.gitignore | 1 +
tests/gdimagesetinterpolationmethod/CMakeLists.txt | 1 +
tests/gdimagesetinterpolationmethod/Makemodule.am | 3 ++-
.../gdimagesetinterpolationmethod/github_bug_00847.c | 12 ++++++++++++
5 files changed, 21 insertions(+), 1 deletion(-)
create mode 100644 tests/gdimagesetinterpolationmethod/github_bug_00847.c
diff --git a/src/gd_interpolation.c b/src/gd_interpolation.c
index 1f625dd22..cf77da7c8 100644
--- a/src/gd_interpolation.c
+++ b/src/gd_interpolation.c
@@ -2257,6 +2257,11 @@ BGD_DECLARE(int) gdImageSetInterpolationMethod(gdImagePtr im, gdInterpolationMet
case GD_BESSEL:
im->interpolation = filter_bessel;
break;
+ case GD_BICUBIC_FIXED:
+ case GD_BICUBIC:
+ /* no interpolation as gdImageScale calls a dedicated function */
+ im->interpolation = NULL;
+ break;
case GD_BLACKMAN:
im->interpolation = filter_blackman;
break;
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